identification guide of freshwater macroinvertebrates of spain

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Identification Guide Of Freshwater Macroinvertebrates Of Spain

Author : Javier Oscoz
ISBN : 9400715544
Genre : Science
File Size : 84. 69 MB
Format : PDF, Kindle
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As a result of the European Commission’s concern for the status of continental waters, and as a clear reflection of the notion of water as heritage to be conserved, in the year 2000 the Water Framework Directive (2000/60/CE) was enacted, its goal being to establish a framework to protect water and the different aquatic ecosystems by requiring the Member States to achieve a good ecological status in all their waters by 2015. Like all ecosystems, freshwater ecosystems undergo physical, chemical and energy-related changes, both of natural and anthropogenic origin. These disturbances affect the organisms living in them and those who utilize their resources. Therefore, evaluating these changes has become a very important task in order to better understand aquatic systems. The study and analysis of the ecological status of these ecosystems in relation to their conservation status and water quality is thus a fundamental tool for a more efficient and rational management of their resources, that is, a management that does not threaten the ecosystem. The present guide for the identification of Spanish freshwater macroinvertebrates aims to facilitate the job of those who go to great lengths to identify them in order to then determine biotic indices. It is not the aim of this book to serve as a zoological treaty, nor does it claim to add new information on the biology or the ecology of the taxa covered. This book is, simply, a working tool explicitly designed to facilitate the identification of the Spanish macroinvertebrates and the subsequent computing of biotic indices.

Bioassessment Of Freshwater Ecosystems

Author : Robert C. Bailey
ISBN : 9781441988850
Genre : Science
File Size : 47. 36 MB
Format : PDF
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Aquatic ecosystem assessment is a rapidly developing field, and one of the newer approaches to assessing the condition of rivers and lakes is the Reference Condition Approach. This is a significant advancement in biomonitoring because it solves the problem of trying to locate nearby control or reference sites when studying an ecosystem that may be degraded, a problem that bedevils traditional approaches. Rather than using upstream reference sites in a river system or next-bay-over reference sites in a lake, an array of ecologically similar, least-exposed to stress sites scattered throughout a catchment or region is used. Once the reference condition has been established, any site suspected of being impacted can be assessed by comparison to the reference sites, and its status determined. The Reference Condition database, once formed, can be used repeatedly.

A Guide To Common Freshwater Invertebrates Of North America

Author : J. Reese Voshell
ISBN : 0939923874
Genre : Nature
File Size : 82. 82 MB
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Provides identification and other information about creatures that are commonly found in the shallows of freshwater areas and are large enough to be seen with the naked eye.

Freshwater Invertebrates In Central Europe

Author : György Kriska
ISBN : 9783709115473
Genre : Science
File Size : 28. 9 MB
Format : PDF
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This up-to-date guidebook on freshwater invertebrates of the central European region is a richly illustrated work, providing an excellent source of systematic information on freshwater macroinvertebrates. Numerous colour photos and additional vector graphic figures allow readers to identify specific species at a higher taxonomic level (family). The book is supplemented by electronic material including pictures and short video sequences. Freshwater Invertebrates in Central Europe – A Field Guide is a must-have for all those interested in the freshwater animals of central Europe such as animal scientists and ecologists, as well as students attending classes on freshwater invertebrate.​

Thorp And Covich S Freshwater Invertebrates

Author : James H. Thorp
ISBN : 9780123850270
Genre : Science
File Size : 63. 30 MB
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Readers familiar with the first three editions of Ecology and Classification of North American Freshwater Invertebrates (edited by J.H. Thorp and A.P. Covich) will welcome the comprehensive revision and expansion of that trusted professional reference manual and educational textbook from a single North American tome into a developing multi-volume series covering inland water invertebrates of the world. The series entitled Thorp and Covich’s Freshwater Invertebrates (edited by J.H. Thorp) begins with the current Volume I: Ecology and General Biology (edited by J.H. Thorp and D.C. Rogers), which is designed as a companion volume for the remaining books in the series. Those following volumes provide taxonomic coverage for specific zoogeographic regions of the world, starting with Keys to Nearctic Fauna (Vol. II) and Keys to Palaearctic Fauna (Vol. III). Volume I maintains the ecological and general biological focus of the previous editions but now expands coverage globally in all chapters, includes more taxonomic groups (e.g., chapters on individual insect orders), and covers additional functional topics such as invasive species, economic impacts, and functional ecology. As in previous editions, the 4th edition of Ecology and Classification of North American Freshwater Invertebrates is designed for use by professionals in universities, government agencies, and private companies as well as by undergraduate and graduate students. Global coverage of aquatic invertebrate ecology Discussions on invertebrate ecology, phylogeny, and general biology written by international experts for each group Separate chapters on invasive species and economic impacts and uses of invertebrates Eight additional chapters on insect orders and a chapter on freshwater millipedes Four new chapters on collecting and culturing techniques, ecology of invasive species, economic impacts, and ecological function of invertebrates Overall expansion of ecology and general biology and a shift of the even more detailed taxonomic keys to other volumes in the projected 9-volume series Identification keys to lower taxonomic levels

Field Guide To Freshwater Invertebrates Of North America

Author : James H. Thorp
ISBN : 0123814278
Genre : Science
File Size : 68. 28 MB
Format : PDF, Mobi
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The Field Guide to Freshwater Invertebrates of North America focuses on freshwater invertebrates that can be identified using at most an inexpensive magnifying glass. This Guide will be useful for experienced nature enthusiasts, students doing aquatic field projects, and anglers looking for the best fish bait, lure, or fly. Color photographs and art, as well as the broad geographic coverage, set this guide apart. 362 color photographs and detailed descriptions aid in the identification of species Introductory chapters instruct the reader on how to use the book, different inland water habitats and basic ecological relationships of freshwater invertebrates Broad taxonomic coverage is more comprehensive than any guide currently available

Britain S Birds

Author : Rob Hume
ISBN : 9780691158891
Genre : Nature
File Size : 86. 37 MB
Format : PDF, ePub, Mobi
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Britain's Birds will be enjoyed, valued and constantly referred to by all bird watchers—whether beginner, experienced or professional. This is the most comprehensive, up-to-date and practical bird book of modern times, featuring an unrivalled selection of photographs that show all the plumages you are likely to see. Focusing on identification, and containing maps, facts and figures on numbers and distributions, this breakthrough publication was devised by a team of lifelong birdwatchers, all with many years' experience of showing people birds and producing user-friendly field guides. Comprehensive coverage of every bird recorded in Britain and Ireland The only photographic guide to show all plumages likely to be encountered More than 3,200 superb colour photographs carefully selected to show key identification features Many photographs of individual rare birds identified in Britain and Ireland Simple steps to help you find and identify any bird you see Pages designed to allow easy and accurate comparison Latest information on status, population, distribution and conservation designations Distribution maps featuring summer, winter and resident ranges, plus details of migration routes to and from Britain and Ireland

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